एपीए उद्धरण

Soars, J., & Soars, L. (1991). Headway - Pre-intermediate: Teacher's book. Oxford: Oxford University Press.

शिकागो स्टाइल उद्धरण

Soars, John, और Liz Soars. Headway - Pre-intermediate: Teacher's Book. Oxford: Oxford University Press, 1991.

एमएलए उद्धरण

Soars, John, और Liz Soars. Headway - Pre-intermediate: Teacher's Book. Oxford: Oxford University Press, 1991.